Unit Converter
Convert length, weight, temperature, area, volume, speed, time, data, pressure and energy units instantly.
How to use
- 1
Select a category: Length, Weight, Temperature, Area, Volume, Speed, Time, Data, Pressure, or Energy.
- 2
Choose FROM and TO units, then type a value — result updates instantly.
- 3
Click Copy to copy the full result, or tap a Quick Conversion chip to load a popular pair.
Free Unit Converter — Convert Length, Weight, Temperature & More Online
Convert between 100+ units across 10 categories. Free, instant, no signup.
Skycally's Unit Converter covers 10 categories and 100+ units in one clean interface. Select a category, pick units, type a value, get the result instantly — no button, no reload, no signup.
The most searched conversions are all here: km to miles, kg to pounds, Celsius to Fahrenheit, liters to gallons, square meters to square feet, megabytes to gigabytes.
Temperature uses precise formulas — not approximations — covering Celsius, Fahrenheit, Kelvin, and Rankine. Data storage includes both SI (KB=1000B) and binary (KiB=1024B) units, clearly labeled.
All conversions run in your browser. The URL updates automatically for bookmarking or sharing. Recent conversions are saved locally for quick access.
Frequently Asked Questions
How many unit categories are supported?
10 categories: Length, Weight/Mass, Temperature, Area, Volume, Speed, Time, Data Storage, Pressure, and Energy — covering 100+ units.
How is temperature conversion different?
Temperature uses mathematical formulas not multipliers. Celsius to Fahrenheit is (°C × 9/5) + 32. Covers Celsius, Fahrenheit, Kelvin, and Rankine.
What is the difference between KB and KiB?
KB = 1,000 bytes (SI standard). KiB = 1,024 bytes (binary standard used by operating systems). Both are included and clearly labeled.
Can I convert in both directions?
Yes. Both FROM and TO fields are editable. Type in either and the other updates instantly. Use the swap button to flip units.
Does the tool save recent conversions?
Yes. Last 5 conversions are saved in localStorage and shown in a Recent section for quick access.
Can I share a specific conversion?
Yes. The URL updates with your current category, units, and value. Copy the URL to share or bookmark any conversion.
Is the converter accurate?
Yes. Uses standardized scientific conversion factors, displays up to 8 significant digits, with scientific notation for very large/small numbers.
Does this work on mobile?
Yes. Large touch targets, numeric keyboard, horizontal scrolling tabs — fully optimized for smartphones.
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